CN206111959U - Planet speed reduction mechanism - Google Patents
Planet speed reduction mechanism Download PDFInfo
- Publication number
- CN206111959U CN206111959U CN201621002202.0U CN201621002202U CN206111959U CN 206111959 U CN206111959 U CN 206111959U CN 201621002202 U CN201621002202 U CN 201621002202U CN 206111959 U CN206111959 U CN 206111959U
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- planetary
- wheel carrier
- gear
- ring gear
- bearing block
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Abstract
The utility model discloses a planet speed reduction mechanism, including bearing frame (2), planet wheel carrier (3), planet wheel (4), ring gear (5) and sun gear (6), the outside of planet wheel carrier (3) end is the terminal surface structure, the structural equipartition of terminal surface be equipped with a plurality of central symmetry in planet wheel carrier (3) rotation center, perpendicular to outside terminal surface and stretching out to the outside drive round pin (31) and construction bolt (32) of outside terminal surface, drive round pin (31) and planet wheel carrier (3) fixed connection, install in the ring gear mounting hole with the internal diameter size interference fit and the location of the ring gear mounting hole of bearing frame (2) with the profile of tooth cooperation of planet wheel (4) and the outer diameter of meshing and ring gear (5) ring gear (5). This planet speed reduction mechanism can guarantee that the axial installation space is dwindled in the realization under the firm prerequisite of being connected of ring gear and axle housing, and the specially adapted is like this kind of axial installation of leveler axle case driving sprocket size mounted position less relatively.
Description
Technical field
This utility model is related to a kind of reducing gear, and specifically a kind of planet suitable for narrow axially mounted space subtracts
Fast mechanism, belongs to vehicle bridge decelerator technical field.
Background technology
Hub reduction gear is afterbody deceleration torsion increasing device in automotive transmission, can be met total using hub reduction gear
Under the conditions of gear ratio identical, reduce the load of the parts such as variator, power transmission shaft, main reducing gear, differential mechanism, semiaxis, size
The advantages of diminishing and make drive axle to obtain the larger road clearance, it is widely used in load truck, motorbus, cross-country
Automobile and some other large-scale work mine car.
Hub reduction gear is in order to improve the driving force of automobile, to meet or correct a set of of whole drive system power matching
Reduction of speed increases the gear drive turned round, and is typically made up of sun gear, planetary gear, gear ring and planetary wheel carrier, general its driving link
Sun gear is connected with semiaxis, Passive part planetary wheel carrier is connected with wheel, gear ring is connected with axle housing.
The planetary wheel carrier of existing hub reduction gear is generally adopted splined mode and is connected with the such as rolling member such as wheel
Connect, not only processing and fabricating is more difficult, but also axially mounted size is larger for this traditional connected mode, and such as land leveller bridge case drives
This axially mounted installation site being relatively small in size of sprocket wheel cannot meet requirement, generally need to by bridge case width dimensions increase with
Meet installation requirement；In addition, the gear ring of existing hub reduction gear is typically with gear ring installing rack with the connected mode of axle housing
It is connected with axle housing, it is this by the way of gear ring installing rack, to cause axially mounted space further to increase.
The content of the invention
For the problems referred to above, this utility model provides a kind of planetary gear speed reducing mechanism, can consolidate with axle housing gear ring is ensured
Realize reducing axially mounted space on the premise of connection, be particularly well-suited to such as this axially mounted chi of land leveller bridge case drive sprocket
Very little relatively small reducing gear installation site.
For achieving the above object, this planetary gear speed reducing mechanism includes bearing block, planetary wheel carrier, planetary gear, ring gear and the sun
Wheel；
Described bearing block is hub type structure, and described planetary wheel carrier, planetary gear, ring gear and sun gear are arranged at hub
Type inside configuration, the medial extremity of bearing block are provided with ring gear installing hole, and inside bearing block, lateral segment is provided with spring bearing；
Described planetary wheel carrier is arranged on the inner side of the spring bearing of bearing block and acts against the spring bearing of bearing block
On inner ring end face, the outboard end of planetary wheel carrier is end face structure, is laid with multiple centrosymmetry in planetary gear on end face structure
Frame center of rotation, perpendicular to end face outside and extend out to the drive pin outside end face outside and installation bolt, drive pin and row
Star wheel frame is fixedly connected, and the inner side end of planetary wheel carrier is provided with multiple Supporting Planetary Gears axles for being secured to connect and many
Individual Supporting Planetary Gears axle centrosymmetry is arranged in the center of rotation of planetary wheel carrier；
The quantity of described planetary gear is identical with the quantity of the Supporting Planetary Gears axle of planetary wheel carrier and is socketed by bearing
On the Supporting Planetary Gears axle of planetary wheel carrier；
The profile of tooth of described ring gear and planetary gear with merge engage, and ring gear outside dimension and bearing block internal tooth
The internal diameter size interference fit location and installation of circle installing hole is in the ring gear installing hole of bearing block；
Described sun gear is arranged on the center of multiple planetary gears, and the external tooth of sun gear simultaneously with multiple planetary gears
Profile of tooth with engagement is merged, the endoporus of sun gear is provided with spline structure.
As further improvement of the utility model scheme, in the end face outside of described planetary wheel carrier, adjusting pad is additionally provided with
Piece.
As further improvement of the utility model scheme, annular end cap, annular end on the inside of described sun gear, are provided with
Lid is fixedly mounted on planetary wheel carrier.
Used as further improvement of the utility model scheme, the external diameter surface of described ring gear is provided with knurling structure.
Used as further improvement of the utility model scheme, the spring bearing of described bearing block is two pieces centripetal thrust force axle
Hold, and two pieces radial thrust bearing correspondence direction is arranged.
Compared with prior art, this planetary gear speed reducing mechanism is due to the outside dimension using ring gear and the ring gear of bearing block
The internal diameter size interference fit location and installation of installing hole is in the ring gear installing hole of bearing block, therefore additionally need not arrange
Gear ring supporting carries out the fixation of gear ring, the complexity of reducing mechanism, reduces axially mounted size, is not only convenient for ring gear and bearing
Integral press mounting can be carried out by frock using forcing press directly when the processing and manufacturing of seat and installation ring gear, both be can guarantee that
Installing bonding strength can prevent ring gear from loosening again；As the outboard end of planetary wheel carrier is end face structure, and directly using installation
Bolt is directly fixedly connected with the end face of rolling member, directly drives rolling member using drive pin, therefore can enter one
Step reduces the axially mounted size of this planetary gear speed reducing mechanism, is particularly well-suited to as land leveller bridge case drive sprocket is this axially mounted
The reducing gear installation site being relatively small in size.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, drive sprocket, 2, bearing block, 3, planetary wheel carrier, 31, drive pin, 32, installation bolt, 33, adjusting pad
Piece, 4, planetary gear, 5, ring gear, 6, sun gear, 7, annular end cap.
Specific embodiment
Accompanying drawing is combined by taking the installation of land leveller bridge case drive sprocket as an example below to be described further this utility model（Below
Describe by outside of direction of the drive sprocket 1 on this planetary gear speed reducing mechanism）.
As shown in figure 1, this planetary gear speed reducing mechanism includes bearing block 2, planetary wheel carrier 3, planetary gear 4, ring gear 5 and sun gear
6。
Described bearing block 2 is hub type structure, and described planetary wheel carrier 3, planetary gear 4, ring gear 5 and sun gear 6 are all provided with
Put in hub type inside configuration, the medial extremity of bearing block 2 is provided with ring gear installing hole, and 2 inside lateral segment of bearing block is provided with support shaft
Hold.
Described planetary wheel carrier 3 is arranged on the inner side of the spring bearing of bearing block 2 and acts against the support shaft of bearing block 2
On the inner ring end face for holding, the outboard end of planetary wheel carrier 3 is end face structure, is laid with multiple centrosymmetry in row on end face structure
3 center of rotation of star wheel frame, perpendicular to end face outside and the drive pin 31 that extend out to outside end face outside and installation bolt 32, drive
Dynamic pin 31 is fixedly connected with planetary wheel carrier 3；The inner side end of drive sprocket 1 passes through installation bolt 32 and drive pin 31 and planetary gear
The end face outside fixed installation connection of frame 3, and drive sprocket 1 be erected on the spring bearing of bearing block 2, drive sprocket 1 and axle
Sealing is provided between the outboard end of bearing 2；The inner side end of planetary wheel carrier 3 is provided with multiple planetary gears for being secured to and connecting
Support shaft and multiple Supporting Planetary Gears axle centrosymmetry are arranged in the center of rotation of planetary wheel carrier 3.
The quantity of described planetary gear 4 is identical with the quantity of the Supporting Planetary Gears axle of planetary wheel carrier 3 and passes through bearing holder (housing, cover)
Connect on the Supporting Planetary Gears axle of planetary wheel carrier 3.
The profile of tooth of described ring gear 5 and planetary gear 4 with merge engage, and ring gear 5 outside dimension and bearing block 2
The internal diameter size interference fit location and installation of ring gear installing hole is in the ring gear installing hole of bearing block 2.
Described sun gear 6 is arranged on the center of multiple planetary gears 4, and the external tooth of sun gear 6 simultaneously with multiple rows
The profile of tooth of star-wheel 4 is provided with spline structure with engagement, the endoporus of sun gear 6 is merged.
This planetary gear speed reducing mechanism is arranged on when using in land leveller bridge case, by connecting with 6 spline of sun gear during working condition
The power input shaft for connecing drives sun gear 6 to rotate, and it is circumferential around sun gear 6 on ring gear 5 that sun gear 6 rotarily drives planetary gear 4
Rotation, and then realize that planetary wheel carrier 3 rotates, drive the rotation of drive sprocket 1 to realize driving drive chain by drive pin 31.
For the ease of adjusting the pretightning force of the spring bearing of bearing block 2, as further improvement of the utility model scheme,
Adjust pad 33 is additionally provided with the end face outside of described planetary wheel carrier 3, by the adjust pad 33 for changing different-thickness size
The pretightning force of the spring bearing of adjustment bearing block 2 can be realized.
In order to prevent 6 axial float of sun gear, as further improvement of the utility model scheme, described sun gear 6
Inner side be provided with annular end cap 7, annular end cap 7 is fixedly mounted on planetary wheel carrier 3.
It is connected in the ring gear installing hole of bearing block 2 to ensure that ring gear 5 consolidates interference fit, it is new as this practicality
The further improvement project of type, the external diameter surface of described ring gear 5 are provided with knurling structure, and knurling structure increases rubbing for faying face
Wipe power, be further ensured that ring gear 5 consolidates interference fit and is connected in the ring gear installing hole of bearing block 2.
In order to ensure firm support effect and prevent 1 axial float of drive sprocket, as of the present utility model further
Improvement project, the spring bearing of described bearing block 2 is two pieces radial thrust bearing, and two pieces radial thrust bearing correspondence direction
Arrange.
This planetary gear speed reducing mechanism is due to the outside dimension using ring gear 5 and the internal diameter of the ring gear installing hole of bearing block 2
Size interference fit location and installation in the ring gear installing hole of bearing block 2, therefore additionally need not arrange gear ring support into
The fixation of row gear ring 7, the complexity of reducing mechanism, reduce axially mounted size, be not only convenient for ring gear 5 and bearing block 2 plus
Work manufacture, and install ring gear 5 when integral press mounting can be carried out by frock using forcing press directly, both can guarantee that installation connect
Connecing intensity can prevent ring gear 5 from loosening again；As the outboard end of planetary wheel carrier 3 is end face structure, and directly adopt installation bolt
32 are directly fixedly connected with the end face of rolling member, directly drive rolling member using drive pin 31, therefore can enter one
Step reduces the axially mounted size of this planetary gear speed reducing mechanism, is particularly well-suited to as land leveller bridge case drive sprocket is this axially mounted
The reducing gear installation site being relatively small in size.
Claims (5)
1. a kind of planetary gear speed reducing mechanism, including bearing block（2）, planetary wheel carrier（3）, planetary gear（4）, ring gear（5）And sun gear
（6）；Characterized in that,
Described bearing block（2）It is hub type structure, described planetary wheel carrier（3）, planetary gear（4）, ring gear（5）And sun gear
（6）It is arranged at hub type inside configuration, bearing block（2）Medial extremity be provided with ring gear installing hole, bearing block（2）Internal lateral segment
It is provided with spring bearing；
Described planetary wheel carrier（3）It is arranged on bearing block（2）Spring bearing inner side and act against bearing block（2）Support
On the inner ring end face of bearing, planetary wheel carrier（3）Outboard end be end face structure, multiple centrosymmetry are laid with end face structure
In planetary wheel carrier（3）Center of rotation, perpendicular to end face outside and extend out to the drive pin outside end face outside（31）And installation
Bolt（32）, drive pin（31）With planetary wheel carrier（3）It is fixedly connected, planetary wheel carrier（3）Inner side end be provided with it is multiple and its
The Supporting Planetary Gears axle being fixedly connected and multiple Supporting Planetary Gears axle centrosymmetry are in planetary wheel carrier（3）Center of rotation
Arrange；
Described planetary gear（4）Quantity and planetary wheel carrier（3）Supporting Planetary Gears axle quantity it is identical and pass through bearing holder (housing, cover)
Connect installed in planetary wheel carrier（3）Supporting Planetary Gears axle on；
Described ring gear（5）With planetary gear（4）Profile of tooth with merging engagement, and ring gear（5）Outside dimension and bearing block
（2）Ring gear installing hole internal diameter size interference fit and location and installation in bearing block（2）Ring gear installing hole in；
Described sun gear（6）It is arranged on multiple planetary gears（4）Center, and sun gear（6）External tooth simultaneously with it is multiple
Planetary gear（4）Profile of tooth with merge engagement, sun gear（6）Endoporus be provided with spline structure.
2. planetary gear speed reducing mechanism according to claim 1, it is characterised in that described planetary wheel carrier（3）End face outside
On be additionally provided with adjust pad（33）.
3. planetary gear speed reducing mechanism according to claim 1, it is characterised in that described sun gear（6）Inner side be provided with ring
Shape end cap（7）, annular end cap（7）It is fixedly mounted on planetary wheel carrier（3）On.
4. the planetary gear speed reducing mechanism according to claim 1 or 2 or 3, it is characterised in that described ring gear（5）External diameter
Surface is provided with knurling structure.
5. the planetary gear speed reducing mechanism according to claim 1 or 2 or 3, it is characterised in that described bearing block（2）Support
Bearing is two pieces radial thrust bearing, and two pieces radial thrust bearing correspondence direction is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621002202.0U CN206111959U (en) | 2016-08-31 | 2016-08-31 | Planet speed reduction mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621002202.0U CN206111959U (en) | 2016-08-31 | 2016-08-31 | Planet speed reduction mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111959U true CN206111959U (en) | 2017-04-19 |
Family
ID=58515734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621002202.0U Active CN206111959U (en) | 2016-08-31 | 2016-08-31 | Planet speed reduction mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013551A (en) * | 2017-04-25 | 2017-08-04 | 盐城市荣南机械制造有限公司 | One kind wheel side retaining mechanism |
| CN108131437A (en) * | 2017-10-11 | 2018-06-08 | 中国北方车辆研究所 | A kind of two stage reducer housing |
-
2016
- 2016-08-31 CN CN201621002202.0U patent/CN206111959U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013551A (en) * | 2017-04-25 | 2017-08-04 | 盐城市荣南机械制造有限公司 | One kind wheel side retaining mechanism |
| CN108131437A (en) * | 2017-10-11 | 2018-06-08 | 中国北方车辆研究所 | A kind of two stage reducer housing |
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